Stewart's Marriage Defunct

03/01/1999 at 12:00 AM EST

Veteran British rock star Rod Stewart says his nine-year marriage to New Zealander Rachel Hunter is over. Five months after the blonde model walked out on Stewart, he says he won't have her back and is now dating Playboy millionaire Hugh Hefner's estranged wife, Kimberley Conrad. Stewart, 54, told Britain's Sun tabloid, "I think about her every day, but there's not the heartache that there was." The singer, famed for such hits as "Maggie May" and "Do Ya Think I'm Sexy," revealed that the split with his wife even put him off sex for two months and forced him into therapy.